Measuring efficiency in supervision and teaching
By: by Lelah Mae Crabbs.
Series: Teachers college, Columbia university. Contributions to education,; no. 175
Publisher: Teachers college, Columbia university
Published: 1925
Place of publication: New York city
Language: eng
Number of pages: 98
Subjects: Teaching; Mental tests
Notes: "References and bibliography": p. 98.
Published also as thesis (PH. D.) Columbia university, 1925.